[Ran^Text^Library] On the way from Wanshanchang to the local garrison guest house in Sanlin, an army green 212 jeep is speeding forward, and the handsome and luxuriant osmanthus trees on both sides of the road are like beautiful and amorous girls, swaying lightly in the slight summer breeze, echoing with the beautiful peaks formed by the Astor landform not far away, forming a beautiful scenery that makes people fascinated. 【Ran Library (7764)】

However, this somewhat intoxicating scenery did not make anyone in this jeep look at it and linger, especially Wang Chuanchen, director of the Weapons Planning Division of the Armament Department of the General Staff Headquarters, who was sitting in the back seat of the jeep, and he was a core figure in the General Staff who actively promoted and supported Lu Jiadong's new artillery project.

It is precisely for this reason that when the new large-caliber long-range artillery project was formally approved, Wang Chuanchen was personally appointed by Tan Bin, director of the Armament Department of the General Staff Department, to serve as the head of the leading group for the new artillery project, mainly responsible for the dispatch of various resources and the coordination and liaison work between the military and local parties.

As the deputy leader of the team, Lu Jiadong is also the chief designer, responsible for the overall development of the new artillery, it should be said that the two are old partners, as early as the 130mm bottom row grenade project, the two of them are like this team to carry out the development work, when it comes to the acquaintance of the two, it can be said that the two are very familiar with each other, and they are also very tacit with each other.

However, in recent times, Wang Chuanchen has been very puzzled by some of Lu Jiadong's methods, and you must know that some of the weapons and equipment developed by Lu Jiadong before have to use some mature technology and technology to reduce the risk and cost of development, but this new artillery has been launched since the first day, and Lu Jiadong seems to have changed as if he is a different person.

Although Wang Chuanchen generally does not interfere in technology, but as a senior cadre who has been fighting in the field of military equipment for many years, Wang Chuanchen knows very well that once a certain equipment uses too many new technologies and new processes,

Not only will this equipment encounter many difficulties to overcome in the manufacturing stage, but even after the troops are installed, there will be many problems of one kind or another due to unstable performance, especially not long ago. Seeing that Lu Jiadong was so tired that he fell asleep in the workshop, Wang Chuanchen felt that he couldn't do it without saying anything.

If this continues, not to mention that the performance of the artillery is difficult to guarantee, even the technicians involved in the development of the artillery will have to suffer from some problems. Especially Lu Jiadong, he is still young, there is still a long way to go, and there are many places where he is needed.

In addition, it also involves research and development funds, development cycles, expert acceptance, etc., because of these reasons, on the way to the Sanlin Garrison Guest House, Wang Chuanchen couldn't help but persuade Lu Jiadong:

"Let's not talk about how much research and development funds we have spent on introducing these machinery and equipment, but in the field of technology, we are almost all using new technologies and new processes this time, so can the stability of our new artillery reach a balanced index? Therefore, I think we should use some of the previous mature technology and technology, which can not only increase the stability of the new gun but also shorten the development time. The most important "

As he spoke, Wang Chuanchen's words couldn't help but pause, and then he looked at Lu Jiadong beside him with concern and continued:

"In this way, Xiao Lu, you don't have to work so hard!"

Wang Chuanchen's words Lu Jiadong heard very clearly, and in all fairness, he was indeed right; if there are too many new technologies and new processes used in a weapon, it is easy to cause the performance of the modified weapons and equipment to be very unstable, for example, the "Arjun" tank equipped by India in later generations has constantly added the latest technology and technology to it in the process of its development. As a result, the development of this type of tank could not be completed for a long time, and it took up to 30 years intermittently, and it was finally ready for the troops.

What I didn't expect was that this type of so-called "domestic" tank, which the Indian military industry is proud of, had frequent failures after being installed in the troops. Even the most basic combat tasks cannot be accomplished, and in the end they can only be reduced to the so-called "parade tank", which has become a joke in the world's military industrial circles, and the reason for this is that in pursuit of high performance, various advanced technologies have been unrealistically piled up, resulting in extremely unstable performance of weapon systems.

For this truth, Lu Jiadong is a military expert who traveled through later generations. Naturally, I know very well in my heart that in fact, according to Lu Jiadong's vision, several key technologies used in the current development of new artillery projects, such as self-tightening of body barrels and electroslag remelting, let alone in the 21st century in a few decades, even in the current world, these two technologies are not the latest.

As early as the late 60s and early 70s, Britain and Germany took the lead in using electroslag remelting and self-tightening technology to manufacture tank guns, and after achieving good results, they were gradually promoted and applied to other high-pressure guns, it can be said that the key technologies of these two artillery manufacturing in the West are very mature, and what Lu Jiadong has to do is to transform these mature key technologies in the West into Chinese's own technology.

For this reason, Lu Jiadong has already taken precautions, in the Wanshan factory has not been relocated, Lu Jiadong in the youth training class set up a relevant course, a detailed introduction to the advanced technology of artillery manufacturing, not only that, Lu Jiadong and Yang Limin, who had not been transferred at that time, these Wanshan factory young workers to foreign language, computer and CNC machine tool operation and other aspects of the knowledge and technology to explain and teach.

After nearly a year of development, it can be said that Wanshan factory has a certain new manufacturing talent base, and now the new artillery project is officially opened, for Wanshan factory as long as a little guidance and training, mastering these new technologies and new processes should not be a problem, it is with this self-confidence, Lu Jiadong dares to boldly introduce these new equipment and manufacturing processes that others dare not think of

"Therefore, our Wanshan factory still has this foundation, such as Director Wang, the Liu Liang you know, when he was developing portable bazookas, he went to the Materials Research Institute to learn computers and CNC machine tools, as well as Chen Zihao and Zhang Aiguo, their theoretical knowledge and operation technology are very good, what they lack is practical experience, but now Wanshan Factory has transferred a lot of professionals and skilled workers in the field of artillery production, so we have overcome this shortcoming!"

"I know that your Wanshan Factory has an effective training and education system, but I didn't expect you to set your sights so far and make relevant technical reserves so early!" Listening to Lu Jiadong's words, Wang Chuanchen's face showed a look of excitement, but as soon as he finished speaking, Lu Weijun, the military representative in charge of driving, said with a smile:

"Chief, not only the training personnel, but also the development of our new artillery, Chief Lu has a far-sighted vision!"

"Oh?" Listening to Lu Weijun's words, Wang Chuanchen couldn't help but be a little surprised, and Lu Weijun didn't look back because he wanted to drive, but he could also feel Wang Chuanchen's searching eyes behind him, so he continued while driving:

"Don't say anything else, let's just say that this set of self-tightening equipment can not only be applied to the new artillery we are developing now, but if I am not mistaken, the main gun on the tank can also use this technology to enhance the structure of the gun body!"

"Chief Master Lu, am I right?"

Listening to Lu Weijun's words, Wang Chuanchen's face flashed with a slight excitement, although he said that he was not so good at artillery technology to Lu Weijun, but he was also very clear about the importance of tank guns, because of this, Wang Chuanchen stared at Lu Jiadong and asked:

"Xiao Lu, this equipment can really be applied to the main gun of the tank?"

"Representative Lu is right!" Lu Jiadong nodded, and then glanced approvingly at Lu Weijun, who was driving in front of him: "In fact, the long-range artillery with a long body tube in the large medicine room we are developing now has a basic principle with the main gun of the tank, that is, when the ammunition is fired, the chamber pressure is very large, and the larger the chamber pressure, the greater the muzzle velocity of the shell.

"So this is necessary to strengthen the body tube structure of the artillery in order to withstand the huge gun chamber pressure?" Although Wang Chuanchen is not as proficient as Lu Jiadong and Lu Weijun in terms of technology, many years of work experience in the military industry have also allowed Wang Chuanchen to exercise to a certain level, and Lu Jiadong listened to Wang Chuanchen's words, and couldn't help but nod in agreement:

In addition to the use of new high-strength cannon steel and the use of electroslag remelting technology to remove the impurities inside, the most effective way to remain is the fastening technology of the body tube, and the self-tightening process of the body tube is the most effective.

The basic principle is that the inner mold of the mold is made hollow, filled with cooling liquid, and pipes are connected to both sides. When the barrel that has undergone high temperature heat treatment is loaded into the mold, the barrel of the high temperature treatment begins to cool slowly, and then the coolant in the inner mold comes in handy, and the barrel close to the inner mold is the first to cool under the action of coolant.

The outer wall of the gun cools more slowly, due to the principle of thermal expansion and cold contraction, after the entire barrel is cooled, the outer part of the outer wall of the barrel that is cooled after the outer layer will tightly clamp the part of the inner layer that cools first, so that the entire barrel will produce a force that tightens inward, that is, this force makes the barrel can withstand greater chamber pressure! Whether it is a suppressed gun or a tank main gun, this technology is very applicable! )

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